17987860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7433}}^1$

素因数の和:7464

約数の個数: 36

約数和(自身を含む): 41526324

約数和(自身を除く): 23538464

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7433, 14866, 29732, 37165, 74330, 81763, 148660, 163526, 327052, 408815, 817630, 899393, 1635260, 1798786, 3597572, 4496965, 8993930, 17987860]

約数ペア:

[(1, 17987860), (2, 8993930), (4, 4496965), (5, 3597572), (10, 1798786), (11, 1635260), (20, 899393), (22, 817630), (44, 408815), (55, 327052), (110, 163526), (121, 148660), (220, 81763), (242, 74330), (484, 37165), (605, 29732), (1210, 14866), (2420, 7433)]